If you get that, your swap is definitely NOT encrypted.
–
DavidJul 16 '11 at 1:47

Okay I recieved /dev/mapper/cryptswap1: UUID="b7a9977e-c5ec-4208-a022-c55ce4a62a65" TYPE="swap" so I assume, as David has said my drive is not encrypted?
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Christopher StansburyAug 12 '11 at 16:12

1

@ChristopherStansbury (Yes, yes, I'm more than two years late; this is for anyone that stumbles on the question in future) au contraire, the "/dev/mapper/cryptswap" implies that your swap is encrypted.
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DaraelDec 2 '13 at 15:26